White Turmeric (Curcuma zedoaria). AKA "Hidden Ginger"
The tuberous rhizomes are actually white (rather than orange as most turmeric)
Our Bridal Wreath bloomed slightly last fall (see the article here.) but is again in full bloom this spring. We have several but here is a sample of what the bush looks like:The leaves are about 2 in (5.1 cm) long, dark green on top, pale blue green beneath, and diamond shaped with toothed margins. The small roselike flowers (0.5 in in diameter) have five (or many) white petals and are borne in round clusters about 2 in (5.1 cm) across and are profusely distributed all over the bush.
….If it is necessary to prune (and that’s a pity!), do so right after flowering, before the next year’s flower buds develop.